What is the percentage of void space in bcc type of in unit cell?

What is the percentage of void space in bcc type of in unit cell?
  1. $68 \%$
  2. $26 \%$
  3. $74 \%$
  4. $32 \%$

Solution

Packing efficiency in bcc type of unit cell $=68 \%$. $\therefore$ Unoccupied volume or void space in bcc type of unit cell is about $32 \%$.

Asked in: MHT CET 2020 (12 Oct Shift 2)

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